In my opinio, Researchgate is one of the best and maybe the best scientific platform for researchers and scientists. But I have one critic about algorithm for creating RG score. We all know that citation in an article is very long way, first from the publication of author's article, then the publication of an article with the citation. My opinion is that the citation should bear many many more points (maybe a 100 more) that asking question or even more if a scientist communicate and answer some questions on RG. Answering is like a blog. There is no administrator that can delete or block some answers. In that way communication can be long making many points.